I recently came across the PSI Tac-Rac Plug-Tool, and I love the idea. I am not a fan of grip plugs, but this actually makes them useful. Having a tool to take down the pistol fully included on the gun isn't a bad thing in my opinion. However, as stated on Lone Wolf, it does not work for Gen4 models. Does anyone know of anything similar that works for Gen4 pistols (or perhaps a similar product that is in the works)? Also...does anyone have any experience with the PSI product? How well does it work? Any problems?